Mack Tesfaye
Verified Expert in Engineering
DevOps Developer
Frederick, MD, United States
Toptal member since June 20, 2025
Mack is a hands-on IT developer and architect with over a decade of experience delivering secure, enterprise-grade solutions using SharePoint, Power Platform, and Microsoft 365 technologies. At Solventum and INSPYR Solutions, he's led architecture, development, governance, and automation strategies across Copilot, Power Apps, Power Automate, Nintex, and Dataverse. Mack builds AI-powered agents and robust DLP frameworks that modernize operations and protect sensitive data at scale.
Portfolio
Experience
- Nintex - 12 years
- ShareGate - 12 years
- SharePoint - 12 years
- Microsoft Power Platform - 10 years
- Microsoft 365 - 10 years
- Microsoft Power Apps - 10 years
- Microsoft Power Automate - 10 years
- Microsoft Copilot Studio - 2 years
Preferred Environment
Microsoft Power Platform, SharePoint, Microsoft 365, ShareGate, Microsoft Power Apps, Microsoft Power Automate, Microsoft Copilot Studio, Nintex, Migration, Automation
The most amazing...
...thing I've developed is a SharePoint migration that modernized legacy content into secure and scalable cloud solutions using Power Platform and Nintex Cloud.
Work Experience
Microsoft 365 Product Manager
Blueair Inc. - Main
- Conducted platform audits of the Microsoft 365 ecosystem—focusing on SharePoint Online—to uncover performance issues and align findings with AI readiness, business needs, and service-level goals.
- Championed M365 and Power Platform architecture upgrades, delivering scalable improvements that boost performance and future-proof workloads.
- Performed proactive security reviews, uncovering access risks and recommending role-based models to strengthen compliance.
- Aligned global stakeholders to deliver data and security fixes—prioritizing AI readiness, Copilot performance, and compliance—via quality reviews, access controls, and phased rollouts.
Power Platform Architect | Developer
Solventum
- Created the Power Platform strategic plan, including rolling out the citizen developer community, migrating critical solutions from the default environment, and implementing industry best practices such as catalog, environment grouping, and ALM.
- Installed and upgraded the Power Platform Center of Excellence (COE) Starter Kit.
- Led cross-functional efforts with Solventum and Microsoft CSA/DSE, spanning Power Platform, security, networking, Azure, and Dynamics, to implement enterprise DLP, VNet injection policies, and the COE Starter Kit across cloud platforms.
- Drove adoption and integration of Microsoft Copilot across business units by leading enablement sessions, developing tailored use cases, and creating AI agents, which increased productivity, streamlined decision-making, and enhanced user engagement.
- Coordinated local and offshore team members as acting team lead, effectively supporting a global customer base by managing incident tickets and ensuring timely resolution, enhancements, and fixes across Power Platform solutions.
- Led and coordinated with Solventum, Microsoft, and Cognizant team members, fostering innovation and collaboration in hackathon app development, AI agent creation, and citizen developer training.
Power Platform, SharePoint, and Microsoft 365 Developer
INSPYR Solutions | NFCU
- Led the groundwork in architecture and development of the company's Power Platform and Microsoft 365 environments, saving the company from paying $300,000 to a third-party company.
- Migrated SharePoint on-premises to SharePoint Online, including Nintex forms and workflows, according to the recommended security and design architecture to get the best out of the Microsoft 365 ecosystem.
- Elevated productivity by automating business applications using Power Platform and third-party tools, including Canvas apps, model-driven apps, Power Automate, Nintex Cloud, and Power BI.
- Made the company compliant by applying robust security measures, data governance, and compliance standards across Power Platform applications and the Microsoft 365 ecosystem.
- Facilitated the adoption of SharePoint Online, Power Platform, and Microsoft 365 implementation by providing user training and knowledge articles to ensure buy-in.
Senior SharePoint Developer
Envision EMI
- Involved in SharePoint migration and application development for seamless transitions and resolution of post-migration issues to enhance overall system efficiency.
- Built and maintained SharePoint custom applications by customizing master pages, workflows, user controls, web parts, and server-side code using C# and ASP.NET.
- Performed application configuration in Microsoft Dynamics 365, Certain, NetSuite, Nintex, SharePoint 2013, Office 365, and Cvent platforms to increase productivity.
- Developed business-critical applications using Nintex, Power Apps, and Power Automate that slashed the costs the company was paying to third-party apps.
- Built and customized web forms using HTML, CSS, JavaScript, and XSLT.
Team Lead
UNICEF
- Served as a UNICEF focal person in the state for all UNICEF-funded programs.
- Led the development of health communication models at the community level in all underserved areas of the state.
- Collaborated with program owners and developed communication strategies based on priorities identified.
- Supervised an extensive state-level network of 28 UNICEF consultants that supported 756 volunteer community mobilizers in communities and settlements across twenty-three local government areas.
- Led the adaptation and use of appropriate communication models at the community level in all underserved areas for immunization in the state.
- Provided leadership and direction in epidemiological and social data analysis and application for strategy development.
- Monitored and evaluated polio communication activities by regularly analyzing the social mobilization data, undertaking field visits, and other existing studies/surveys.
BCC Program Officer
EngenderHealth
- Involved in developing the national BCC framework for the HIV/AIDS program.
- Headed the joint monitoring and evaluation of project activities in collaboration with partners working on MARP groups, school-based HIV prevention, and workplace interventions.
- Participated in the development of service mapping and referral linkage roadmap for MARPs.
- Documented the project's best practices and success stories and led the dissemination.
Capacity Building Manager
Academy for Educational Development
- Spearheaded the baseline survey for the project, synthesized key findings, and disseminated them among stakeholders.
- Led the development of evidence-based IEC/BCC materials, distribution, monitoring, and evaluation.
- Coordinated with consultants to develop the BCC capacity-building training manual.
- Coordinated the TOT and cascade training in three major country regions.
- Participated in a proposal write-up for the country's application for the Global Fund Round Eight applications.
Program Coordinator
Health Development and Anti Malaria Association
- Coordinated the activities of four program areas: HIV, malaria, RH, and climate change.
- Involved in the development of the organization's five-year strategic plan.
- Coordinated the construction of 300 model toilets, 32 footbridges, and 51 water wells and spring development.
- Coordinated with short-term consultants on proposal write-ups and research undertakings.
- Trained, deployed, and supervised peer educators for ANC/PMTCT.
Experience
Solventum | AI-enhanced Automation and Microsoft Copilot Integration
SharePoint Online Migration and Workflow Modernization
As part of the Microsoft 365 migration and development team, I led the design of the migration strategy, collaborated with Microsoft, and utilized ShareGate to ensure a smooth and efficient transition. At the same time, I helped modernize legacy Nintex workflows and InfoPath forms by migrating them to Nintex Cloud and Power Platform, redesigning them for a cloud-native architecture.
These efforts reduced member request processing times by 50%, eliminated technical debt, and enabled secure, scalable collaboration across the organization.
Solventum | Power Platform Strategy and Governance Roadmap
As a result, the organization established a clear, sustainable framework for Power Platform adoption, reduced shadow IT risks, and accelerated the rollout of low-code solutions that empowered business units to innovate independently while maintaining enterprise standards.
Education
PhD in Information Technology
University of the Cumberlands - Williamsburg, KY, USA
Master's Degree in International Community Health
University of Oslo - Oslo, Norway
Bachelor's Degree in Public Administration and Development Management
Addis Ababa University - Addis Ababa, Ethiopia
Certifications
Microsoft Certified: Security, Compliance, and Identity Fundamentals
Microsoft
Certified in Cybersecurity (CC)
ISC2
Generative AI Fundamentals
Databricks
Microsoft 365 Certified: Fundamentals
Microsoft
Microsoft Certified: Power Platform Fundamentals
Microsoft
Microsoft Certified: Azure Fundamentals
Microsoft
ITIL Foundation Certificate in IT Service Management
AXELOS Global Best Practice
Computer Programming Foundations
Coursera
Skills
Tools
ShareGate, Microsoft Power Apps, Nintex, Microsoft Copilot, Microsoft Intune, Nessus, Microsoft Power BI, Microsoft Power Pages, InfoPath, SharePoint Designer, Microsoft InfoPath, Jira
Paradigms
Automation, Agile Software Development, App Development, Change Management
Platforms
Microsoft Power Platform, SharePoint, Microsoft Power Automate, Microsoft Copilot Studio, Azure, SharePoint 365, Windows
Industry Expertise
Cybersecurity
Languages
JavaScript, CSS, HTML
Frameworks
AI Risk Management Framework
Storage
Azure SQL, Microsoft Entra ID
Other
Microsoft 365, Migration, IT Project Management, Cloud Architecture, IT Security, Program Management, Research, Governance, Data Loss Prevention (DLP), IT Governance, Team Leadership, SharePoint Online, Microsoft Entra, Enterprise Application Development, IT, IT Support, Maintenance, Risk Assessment, Vulnerability Assessment, Technical Support, Artificial Intelligence (AI), AI Security, AI Risk Assessment, GRC, Leadership, Architecture, Business Continuity & Disaster Recovery (BCDR), Active Directory (AD), Endpoint Management, Cybersecurity Operations, Human Resources (HR), Microsoft Dataverse, Microsoft Power Virtual Agents, Development, AI Copilots, NIST, Threat Modeling, CISSP, Machine Learning, Analytics, Technical Leadership, NetSuite, Cvent, Dynamics CRM 365, Agile Program Management, Consulting, Communication, Healthcare IT, Global Project Management, Enterprise Cybersecurity, Solution Architecture, Azure Blob Storage, Product Licensing, Offshore Team Management, AI Automation, AI Agents, Strategy, Planning, Information Architecture (IA), Software Deployment, PnP PowerShell, Cloud Services, Compliance, Office 365, Security, Windows 10, Data Cloud, Cloud Storage, Cloud Security, Access Control, Business Continuity, Disaster Recovery Plans (DRP), Network Security, Incident Response, Operational Security (OPSEC), Security Principles, Artificial General Intelligence (AGI), Identity, Programming, SharePoint Architecture, Microsoft 365 Ecosystem, Data Governance, Performance Auditing, Security Governance, AI-Ready Data Structuring, Cross-functional Collaboration, Stakeholder Reporting, Microsoft Purview, Security Gap Analysis
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